R911321681 (MSK101C-0300-NN-M2-AG2-RNNN)

MSK IndraDyn S Synchronous Motors

MSK101C-0300-NN-M2-AG2-RNNN Series Image

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The Indramat MPN R911321681 (MSK101C-0300-NN-M2-AG2-RNNN) is an IndraDyn S Synchronous Servomotor featuring a 70 Nm electrically-released holding brake, 101 motor size, and length C design. It operates using natural convection cooling and requires cooling type FN. The motor has a plain shaft with a DS M12 frontal centering hole, B5 frame size, smooth output shaft with sealing ring, and M58 flange socket for power connection directed to the A-side. The integrated multiturn absolute optical encoder (EnDat2.1) provides 2048 signal periods of resolution and controls motor position and speed. Electrical specifications include a continuous current at standstill of 21.3 A (100 K), continuous torque at 36.5 Nm, maximum current of 84.2 A, maximum torque of 110.0 Nm, and winding inductivity of 6,000 mH. Rated for use in environments up to 40°C, the motor achieves IP65 protection for shaft and housing and complies with climatic category 3K4. The high-temperature overload indicator, single-channel temperature monitor, and UL/CSA compliance are standard. The holding brake is not intended for personnel safety. Readymade manufacturer cables are required for operation; cable damage results in device inoperability.

Technical Specifications

Holding Brake
70Nm

Acceptance Test Requirement
Yes

Intended Use
Industrial Machinery

Temperature Monitor
Single-channel

UL Listed
Yes

CSA Certified
Yes

Electrical Connection
Circular connectors

Output Shaft
Plain and smooth

Shaft Sealing Ring
Included

Ambient Operating Temperature
Maximum 40°C

Connection Points
Live during operation phase

Frame Size
B5 EN 60034-7

Frontal Centering Hole
DS M12 DIN 332, Part 2

Encoder System
Integrated

Cable Connector Direction
A side

Power Connection
M58 flange socket

Holding Brake Safety Assurance
No

Backup Support
One-year

3K4 Climatic Category
Yes

Vibration
Sinewave oscillations

Allowed Axial Vibration Load
10m/s2 between 10Hz and 2000Hz

Degree of Protection
IP 65 EN 60034-5

Compatibility Test Requirement
Yes

Global Shipping
Yes

Frequently Asked Questions

Why is the 70 Nm electrically released holding brake important on MSK101C-0300-NN-M2-AG2-RNNN?

The 24 VDC, spring-applied/energize-to-release brake secures vertical or load-holding axes during e-stop or power loss. It limits back-driving and simplifies compliance with safety stop functions on Z-axes.

What encoder configuration does MSK101C-0300-NN-M2-AG2-RNNN use and why does it matter?

It uses an optical multiturn absolute encoder that is EnDat 2.1 with 2048 signal periods for enabling precise multi-rev position capture and secure parameterization. It improves repeatability and simplifies homing for coordinated axes.

How does natural-convection cooling influence integration of MSK101C-0300-NN-M2-AG2-RNNN?

Its fanless thermal dissipation reduces components and acoustic emissions for easing maintenance and enclosure design. It suits cabinets or machine frames where airflow is available, while leaving headroom for external “FN” cooling if the duty cycle later increases.

What does “increased concentricity” imply for MSK101C-0300-NN-M2-AG2-RNNN?

The tighter shaft runout and rotor alignment reduces radial error motion to improve encoder fidelity and gearbox life. It’s advantageous for high-precision indexing or web handling where synchronous velocity tracking is critical.

How does winding inductivity (~6,000 mH) and rated speed code “0300” affect drive tuning for MSK101C-0300-NN-M2-AG2-RNNN?

The higher inductivity smooths current ripple for enabling stable current loops; drive parameters can use higher gains without oscillation. Its speed code sets base back-EMF constants to influence achievable speed/torque curves and bus voltage selection.

Common Misspellings

Internal Product Review

The Indramat’s IndraDyn series servo motor MSK101C-0300-NN-M2-AG2-RNNN is presented with an optical multiturn EnDat 2.1 (2048) encoder with increased concentricity, a plain shaft design, A-side power connector and natural-convection design. It offers 36.5 Nm at standstill by utilizing 84.2 A current and provides a peak torque of 110 Nm. This unit includes a 70 Nm brake system to fit in machine systems like packaging, printing, metal-forming and machine-tool axes.